Regular inspection of pressure vessels
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Alkylation unit, first periodic inspection. The local special inspection agency has been insisting on conducting an inspection by opening the cans. Is there anyone among my peers who I can consult for experience? Look for third-party testing agencies that offer online testing.
The initial inspection definitely requires opening the container for inspection, unless you conduct an RBI to extend the inspection period; even after that extension, opening the container for inspection is still necessary.
It is recommended to first take a look at the provisions on regular inspections in TSG 21-2016 \"Safety Technical Inspection Regulations for Fixed Pressure Vessels\", and then you will understand:victory:
Before conducting regular inspections, the inspection agency shall develop an inspection plan specific to the equipment to be inspected. Therefore, the inspection upon opening the container must be carried out in accordance with the inspection plan established. If the owner’s equipment cannot undergo regular inspections on schedule, a written application explaining the situation must be submitted; with the approval of the institution responsible for previous regular inspections, and after registration with the authority in charge of equipment use, can the inspection be postponed ； However, the plan for opening the cans for inspection cannot be waived
Is this something you can choose? Can opening inspection is a mandatory requirement under Chapter 8 of the Solid and Liquid Waste Regulations.
Pressure vessels, especially spherical tanks, should be inspected internally first, with priority given to inspecting the inner surfaces in contact with the medium. If only external inspections are performed, internal defects are not easy to detect.
Pressure vessels, especially spherical tanks, should be inspected internally first, with priority given to inspecting the inner surfaces in contact with the medium. If only external inspections are performed, internal defects are not easy to detect.